Truck.



O, GENTLE TRUCK.

APPLICATION 211.21) JAN. 11, 1910.

978,015; Patented Dec. 6, 1910.

fig;

CHARLES GENTLE, 0F HAMILTON, ONTARIO, CANADA.

TRUCK.

oaaora.

Specification of Letters Patent.

Patented Dec. 6, 1910.

Application filed January 11, 1910. Serial No. 537,478.

To all whom it may concemg Be it known that I, CHARLES GENTLE, a subject of the King of Great Britain, and resident of Hamilton, in the county of lVentworth, in the Province of Ontario, Canada, have invented new and useful Improvements in Trucks, of which the following is a specification.

My invention relates to improvements in trucks, and consists of an axle held stationary in bearings secured to the underside of the frame of a truck, wheels adapted to revolve on ball bearings on said axle, and removable means on the hubs of the wheels to retain the balls in position and to prevent dust from entering into the ball bearings.

The objects of my invention are first to provide a truck which will run smoothly and steadily on ball bearings on a stationary axle, second, to provide removable means whereby the balls may be admitted to position, and removed when necessary without the aid of tools, third, to provide removable means to retain the balls in position and to prevent dust from entering the ball bearings, fourth to afiord facilities for securing the axle to the axle brackets on the truck, and for removing the axle from the truck. I attain these objects by the mechanism illustrated in the accompanying drawing in which Figure l is a sectional end elevation of ball bearing wheels on a stationary axle in brackets secured to the frame of a truck. Fig. 2 is an enlarged sectional end elevation of the hub part of a wheel on ball bearings on an end part of an axle which is secured to a bracket on the frame of a truck. Fig. 3 is an enlarged section of the axle, the hub of the wheel and the retaining band on the hub, through the broken vertical line X, X, of Fig. 2 of the drawing. Fig. 4 is an enlarged plan of an end part of the hub of a wheel, showing a longitudinal and an annular groove in the same. Fig. 5 is an enlarged end elevation of one of the bands detached from the hub of the wheel showing a teat in the interior thereof, said teat adapted to fit the grooves in the hub.

Similar letters refer to similar parts throughout the several views.

In the drawing A is the frame of a truck, and B, are brackets rigidly secured to the underside thereof, and transversely opposite one to the other.

G is the axle, having annular ball bearing pins 4, also prevent lateral movement of the axle, and any possible friction between the bracket and the end of the ferrule.

D, are the wheels, the central bores of the hubs of the wheels, are larger in diameter 7 than the axle, in order to revolve free of the axle. Both wheels D, and the parts connected therewith, are identical in construction, therefore the description of one wheel, will be suflicient.

In the bore of the hub of the wheel, are interior grooves 5, which conform to and with the annular grooves 2 in the axle, and in which are a number of balls 7. Removable tapered plugs 8, are inserted in the tapered openings 9, of thehub and immedi ately opposite to the grooves 2 and 5. The outer ends of the plugs conform to the periphery of the hub, and fit snugly in the openings 9, and the inner ends of the plugs are concave to conform to the roundness of the balls and contact with the balls when in position. The outer ends of the plugs are flush with the peripheries of the hubs, and are removable without the aid of any tool. The bearing, or round hub part of the bracket B, extends beyond the bracket and is of the same diameter as the hub of the wheel, and loosely contacts with said hub so as'to avoid friction when the wheel revolves. The collar 3 on the axle is in proximity with the inner end of the hub and loosely contacting therewith to avoid friction between said hub and collar.

E and E are similar bands, or ferrules, and fit snugly on the hub of the wheel, and one of the ferrules extends on the bearing of the bracket B, and rotates freely on said bearing. Each of the ferrules E, is-provided with an inwardly projecting teat F. The hub of the wheel has horizontal grooves 10, extending from the ends of the hubs to the annular grooves 12, which are shown in Fig. 4, of the drawing. The teat F in the ferrule is adapted to slide in the longitudinal groove 10, and find its rest in the annular groove 12. The ferrule may then ,be revolved one half revolution, with its teat in the annular groove and there remain in order to lock the plugs 8 and thereby to re \Vhen the ferrules are brought back until the teat F comes to the groove 10 then the ferrules may be removed, thereby releasing the plugs 8 and the balls ,7. ,lThe ferrules contact with and retain tain the balls.

the taperedl lugs S in position, and also' cover the joining of the hub of the wheel, with the bracket 13, and the opposite end of said hub with the collar 3, of the axle, and

thereby preventing any dust from entering the ball bearings.

The central part of the hub of the wheel has an oblique oil hole 13, which is provided witha removable split pin H, whichwhen withdrawn, oil may be admitted to the axle and thence to the ball bearings, and the pin again inserted. a The split in thepin l, and

r in the pin H, allow the pins to spread, and ithereby prevent said pms from Working loose in the truck when in use. a

it will be noticed, that n this invention,

be made and assembled topered plug through one: side of the hub of the wheel to admit"ballsto position a longitudinal groove, and an annular 'groove communicating with each other on said lhub,

a ferrule having a teat on its inner side-valid adapted'to slide on the hub and plugfan'di longitudinal groove','n lock in said annulargroove, to retain the plug, and to partial} said teat to, slidein the and then to rotate and cover the b earing of the axle.

2. In a truck, frame, bracket bearings L rigid therewith, a stationary aXle in the bearings annular grooves in, the axle, a wheel on the axle having grooves opposite to and corresponding to the annular grooves a removable tapered plug in the hub ofsaid wheeland opposite tosaid grooves,acol1ar on the axle adj oining the hub, a ferrule adapted tov slide on thehub and the collar, a longitudinal and an annular groove on the hub, a teat onthe frrule adapted toslide in the longitudinal groove, and to rotate a h distance inv the l annular groove, and tol ock therein, and thereby lockthe plug and cover ,1 t11e-e 11a1:,t prevent d s f m e ter ng he ballb ar gs' 1 .a a

a i CH RL S GENTLE.

Witnesses: 1 JOHN HFHENDRY,

M. LYNCH STAUNTON.

in, r 

